Change-speed mechanism



\ Sept. 9 1 924.

.1. FARLEY I CHANGE SPEED MECHANISM Filed Jun e 2s 1924 s sheets-she t 1llWf/YTOR.

Sept. 9 1924. I 1,507,819

. J. FARLEY CHANGE SPEED MECHANISM Filed June 28. 1924 3 SheeLs-Sheet .29 y W a J5 J4 Maire/7L 45 i Patented 9, 1924. I

" UNITED. STATES. P TENT [OFF-ICE.

JAMES Imam, or nanrroansnma; EN LAND.

CHANGE-SPEED nncnamsmu To all whom it mag camera:

Be it known that I, JAMES FARLE'r, a sub-' I provide improved means toprevent damage to gears during changes by effecting engagement of gearsin the absence of torque on the lay shaft. Another object is toconstruct a gear so that the known advantage of a direct drivegin theabsence of rotation ofthe 2 lay shaft is obtained. A further object is vto frustrate an attempt to change to a for ward drive when the reversegears are in meshby locking the gear change control when reverse gearsare in operative position.

- A further object. is to provide ineans to fa- 1 'cilitate changes ofgears by indicating the required position of control so as to effect therequired change. A still further object is to provide meansfortemporarily securing the control when in any of the requiredpositions-for various speed changes as soon as'it is 'moved into thatposition,thereby preventing over-running of the change required. In theaccompanying v lustrated a preferred embodiment of the invention asarranged for the gear box-of'a motor-car. r Fig. 1 is a section on theline 1+-.-1 of Fig. 2, the portion shown in dot and pick linesindicating arts in front of the plane of the section 1n order to renderthe reading. of the figure moreclear;

' Fig. 2 is a section on the line 2-2 of Fig. 1, the portion shown indot and picklines indicatmg parts in front of the plane of the sectionin. order to render the reading of the figure more clear;

. Fig. 3 is a plan view indicati'n the; rela-- tive positions of thecontrol han 1e and re-- "versing lever as hereafter referred to;

r Fig. 4 is a plan view of a control handle I in the form-o drawings isil-.

a wheel provided with a trip,

Application :fl'ld June 28, 1924. Serial No. 723,045.

gear wliich operates to temporarily secure the control wheel in; theproper positions for effecting the various gear changes;

.Fig. 5 is a. sectional elevation taken on the line 5-5 of Fig. 4,showing engagement of the trip gear with the head of the notched columnhereafter referred to; Fig. 6' is a similar view to Fig. 5 showing therelative position ofthe trip gear and co-operating.notched column whenthe control wheel has been partly rotated for a gear change to theposition indicated by the line 6-6 in Fig. 4;

Fig. 7 is a sectional elevation taken on the I 7 line 77 of Fig. 1, andillustrates a means of locking the gear against a forward change whenthe reverse gear is in operation, the independent control lever includedinthis figure being shown in full for sake of clearness;

- Fig. 8 is a diagrammatic view in side elevation of the constructionshown in Fig. 7, thereby: more clearly showing the arrangement indicatedin Fig. 1'; and

Fig. 9 is. a similar view to Fig. 7 showing a modified arrangement.

LReferring first to Figs. 1, 2, and 3, the engine shaft, or driver, asit ishereafter referred to, is indicated by the reference 1, the secondmotion or driven shaft'by the reference 2, and the lay shaft by therefer: ence 3. The shafts 1 and 3 are connected 'by constant mesh gear,including a loose wheel 4 on the driver and a fiited wheel 5 change, andthe wheels 7 and 9 a second pair.

By sliding the wheels 6 and Ten the driven shaft- 2, either 6 willengage with 8, or 7 will engege with 9, and 1f power has beentransmitted to the la shaft, a corresponding gear drive will be 0 tainedfrom the driven shaft 2.

- on the driver is mounted a sliding clutch member 10 which is providedwith dog clutches 11 on one side, forming a complementary face to engagewith the clutch face 12 a the loose wheel4; the sliding clutch member isof course fixed for rotation with the driver, so that when its dogs 11engage with the dogs on the clutch face 12, power is transmitted to thelay shaft. On the other side of theclutch member 10 to the dogs 11 aredogs 13, and the driven shaft is pro- .transmission drive two idlerwheels are-provided, indicated by the references-15 and 16; thesefidlerwheels are fixed for rotation together, and are slidably arranged on aguide shaft hereafter referred to. A reverse. drive is obtained by firstarranging the wheels 6, 7 in the neutral position shown in Fig. 1,

' that is, the position in which the wheels do not engage either of thewheels 8 or 9,. and then the wheels 15 and 16 are slidto the right sothat the wheel 16 engages the wheel 9 and the wheel 15 engages the wheel6.

Supposing then the clutch has been moved so that the dogs 11 engage theclutch face 12 of the loose wheel 4, power will be transmitted from 1,through 4, 5, shaft 3, wheels 9, 16, 15, 6, and driven shaft 2. During aforward drive involving th meshing of the wheels 6 and 8, the idlerswill also be rotated, as in this position of the gear'the idler 15 is inmesh with the wheel 8.

Now, as before stated, a gear drive is obtained by moving'the wheels 6,7 to engage the wheels 8 or'9 in the absence of torque on the lay shaft.To this end an operating member 17 for the clutch and a shifting member18 for the gears 6, 7 are provided; these clutch-operating and gearshftlng members are slidably arranged on guides 17' and 18 respectively,and in order to slide the clutch-operating and gear-shiftmg members ontheir respective guides, as required, controlling means are provided,comprising strikers fixed to bars operated by cams. The operating member17 is com nected by a striker 19 to a bar 20 carrying a bowl 21 operatedby the cam 22,- and the shifting member 18 is connected by a striker 23to a bar .24 which carries a bowl 25' operated by the cam 26.

In the construction shown the cams 22 and 26 are what are knownas'railway cams, and one is provided on each face of a disc 27 so thatas the disc 27 is rotated each of the cams will also be equallyangularly moved,

each imparting a specific movement to therespective bars through theagency of the bowls 21 and 25., as will be readily understood. a

The cams 22 and 26 are formed so that the gears 6 and 7 are moved totheir respective gear pairs 8 and 9 while thedogs 11 of the clutchmember 10 are out of en. ga'gementwith the clutch face 12 of the loosewheel 4, and further, to hold the gears I gear-shifting members includesfurther a. handle preferably in the form of a wheel,

the disc 27 to obtain the gear change required the con; trolling meansof the'clutch-operating and as indicated at 28. This wheel is mounted ona spindle 29 which is connected by transmission gears in the form ofbevels 30, 31

to an axis member 32 on which is fixed fthe disc 27 As the axis member32 has to pass through the bars 20 and 24 the latter are slotted, asindicated at 32 in Fig. 1 in order that their movements are notobstructed.

28 in Fig. 4, and an indicator 33 is'provided so that the operator isshown the proper positions of the wheel by registerin the markings withthe indicator; the mar 'ngs for the gear illustrated will be as shown inFi 4, that is, with the words Top, econd, First, and Neutral,- and theThe wheel 28 is marked as indicated at vloo gear indicator 33 isdisposed so that the wheel is movable with" reference to the indicator.I

In order to obtain the reverse drive'the Wheels 15 and 16 ar providedwith an independent control, preferably in the form of a lever, asindicated by the reference 34, disposed to the side of the controllingwheel 28 (see Figs. 1 to 3). Thislever is pivoted at 35 andits pivotextends through the bar 20, and accordingly therefore the .bar 20 mustbe further slotted as indicated at 20 .(Fig. 7) in order to allow thebar to move under effort from its respective cam. The

independent control 34 is connected to the w wheels 15 and 16 in thefollowing manner A sliding member 36 is mounted on a guide 36 which isjuntaposed and parallel to the aforementioned guides .17 and 18* (seeFig.2); the slidingjmember has lugs 37 on its upper part in which thelower end of the lever 34 engages, so that as the lever 34 is rockedabout its pivot 35 the sliding member 36 is moved to and fro along its:

guide 36. The wheels 15 and 16 are formed at opposite ends of acylindrical member 38jslid-able on the guide shaft 39, the cylindricalmember being grooved, as indicated at 40, for the reception of a sector41 formed a at the lowerfextremit y of an arm 42 depend.- ing from'theslidingmember 36; as the sector engages in the groove 40 movements ofthe sliding member are imparted to the wheels 15 and 16.,

Previous to operating the reversing lever 34 the wheel 28 will berotated to the position in which the wheels 6 and 7 are in neutral andthe dogs 11 engage the clutch face of the loose wheel 4. The, lever 34is then operated to engage 16 with 9 and 15 with 6. Now in order toprevent a movement of the cams when the idlers are in the position forreverse as just stated, a locking device is .provided which preferablytakes the form of a projection 43 on the control lever and a recess 44on the disc, the recess being-disposed so that as the lever is moved. toreverse, the projection'43 enters the recess 44 and locks the discagalnst movement until the lever 34 has again been moved to place theidlers 15 and 16 out of operative position.

From the foregoing description the operation of the gear will bewellunderstoody however, it is pointed. out that themark Top on thewheel 28 corresponds to direct drive position of the gear, and the] markNeutral corresponds to reverse drive position, that is to say, when themark Top is underneath the indicator 33 the wheels 6 and 7 will be inthe position shown ,in Fig. 1 and the dogs 13 and 14 engaged, while inthe neutral position the gears 6 and 7 will be-in the position shown inFig. 1, but the dogs 11 engage with the clutch face 12 so that the layshaft is rotating. In this sition the recess 44 is in position forlookng the disc-27 as before stated.-

' As already explained it is preferred to associate with the controlwheel 28 an indicator so that ,the operator can see the exact positionsfor the wheel to obtain the desired changes.

Now in order to prevent. the operator overrunning the positions andtherefore passing through a desired change a 'trip' gearis provided. Thespindle 29 is mounted in a fixed column 45 and the head of the column isnotched as indicated at 46(Figs. 4 to 6). The notches 46 are arranged onthe head of the column so that when a catch 47 carried by the wheel 28is in one of the notches the respective marking-28 on the wheel will beopposite the indicator 33. The catch 47 is pivoted'at 48 between lugs 49on a boss 50 of the wheel 28, the pivot being arranged so that when thecatch 47 is in the vertical position it engages one of the notches 46,as indicated in Fig.5. This po sition of engagement is ensured by aspring 51 which is disposed and tensioned so that it tends to push thecatch into the notches. That end of the catch which is on the other sideof the pivot 48 to the notch 46 is provided [with a cam face 52 and inorder to move the catch so as to release it from a notch a nose member53 is pivoted at 5 on being carried in brackets 57 formed on theunderside of the wheel 28, the forward part of the. lever 55 beinslotted out to form housing for the mem r 53.

The nose member 53 is provided with springs 53 and 53", the spring 53engaging the noseof the member; the normalposition of the spring pressednose member 53 is 'shown in Figs. 5 and 6, that is, the .nose member 53is tilted in relation to the lever 55, while the spring 53 engages theother end or heel of the member as hereafter explailied. Thatend of thelever 55 awav from the member 53 is connected to a push rod 58 having aknob 59 by which it is operated against a spring 60 secured between theknob and a bearing sleeve 61 for the rod 58. v The knob 59 is providedon its underside with a stop 59, which limits'the downward movement ofthe rod by engaging the upper face 62 of the protecting ball 62, whichis screwed on to the sleeve 61, as clearly' shown inf-,Fig. "5. It willbe noted'that the ball 'is hollowed out, as indicated at 63, to form ahousing for the spring 60.,

The arrangement and dispositionbf the nose member 53 and cam face-52 ofthecatch 47 and of the distance between the stop 59,

and the face 62 of the ball 62. is such that I when the rod hasbeeirdepressed to its full.

extent, that is, so that the stop 69. is resting on the" face 62, thenose of the member. 53

,will have been passed up partofthe cam face 52 so as to rock the catch47 until it is "nearly clear of the notch 46 with whichit is engaged,and in passing up to this'position the member 53 will come,into'alignment with the lever 55 because of the engagement of its nosewith the cam face 52v against the 'action of thespring 51. This movementof the nose member 53 tensions the spring 53 i with which it engages. Inthis position, the nose of the member 53 remaining in engagement withthe cam face 52 prevents the re- 6 turn of the catch 47 into thejnotch46 under action ofthe spring 51. It, therefore, does not matter if thewheel 28 is not immediately rotated while the knob 59 is maintainedpressed. The sides of the notches 46 are chamfered off, as indicated bythe reference 46 in Fig. 4, the chamfer extending inwardly to the notchso that the catch is at the beginning of the chamfer when it is held intilted position-by the member 53 on the depression of the knob 59. Then,as

the wheel 28 is rotated, the catch 47 is caused -to ride over thechamfered face 46 out of the notch. The posltion of the parts is thenasindicated in Fig. 6, and it will be noticed .that the nose of the member53 is now abovev the cam face 47 and is again tilted in relation to thelever 55. This is due to the aca I tion of the sprin 53 which was put inten-- sion as the mem r 53 passed over the cam face 52. Thecatch 47 is,therefore, free to returnnnder the action of the spring '51 when a notch46 is again in register with the catch 47".

It will be appreciated that as soon as the 'wheel 28 has been rotated soas to bring the catch 47 out of a notch 46, the 'knob59 can be released,and in such a condition of affairs the nose member 53 and lever 55 mayagain automatically attain the normal position shown in Fig. 5 due tothe action of the,

spring 60, and even if the knob 59 is held down until the catch 47isengaged with the next successive notch 46. The member 53 can pass thecamface 52, when the knob is released, due to its pivotal arrangement onthe lever 55; and in this movement the spring 53 comes into action. Asthe member 53 re-engages the cam face 52 it is further tilted aboutv itspivot 54 because the catch 47 is then vertical and this additionalmovement of the member 53 brings its heel into engagementwith the spring53 so that then the spring is tensioned and tends 'to.

returnthe nose member to its initial position. 1 v r With such anarrangement a step by step movement'of the control wheel through its Ioperative positions is assured, and after each movement the nose memberand lever 55 are in the initial position shown in Fig. 5,

' reatly on the operation of the knob 59 to a ain rock the catch freeof. the notch with w ich it is enga'ged.- I

In order to simplify, in Fig. 6, the illustration of the parts after thecatch has ridden over achamfered face46 of a notch 46,

thevhead of the column 45 has been illus trated as if it had beenrotated instead of the wheel 28, thereby avoiding confusion inillustrating the movement of the parts 47 53 and 55 from thepositionshown in Fig. 5.

- It will, therefore, be clear that in order to move the control wheelthev operator has todeliberately depress the knob 59 and then the wheelcan only be moved to the next gear position because the catch willengage the next successive notch. To further move the wheel, therefore,the operator has again to deliberately depress the knob 59, and

so on.

The trip gear, therefore, assures that the wheel is moved in therequired position for a desired gear change, and further, isheld in thatposition so that over-running of the control is prevented. The trip gearalso prevents inadvertentmovement of the hand wheel while agear pair isinoperation, or

when any particular gear is runnlng.

- Referring-now to Fig. 9, this shows a modified construction forlocking the disc 27 when the gears 6, 7 and the clutch memher-10 are inposition when the lever 34 can be operated for a reverse drive. In thismodified construction the lever 34 is provided with a boss 64. which isinternally threaded to receive a spindle which is ex- 'ternally providedwith a quick action thread 66. The outer end of the spindle is providedwith'a square head 67 disposed in a lock-9 ing plate 68 by which thesplndle is secured against rotation but is free to move longitudinally.The inner end of the spindle 65 is provided with a pin 69, thearrangement being such that a rotation of the lever 34 causes an axialdisplacement of the spindle '65 causing the pin 69 of the latter toenter ,one wheel on the lay'shaft and the other on the driven shaft, ashifting member for obtaining relative movement into and out ofengagement between the wheels of the pair,

a constant mesh gear connecting the driver and lay shafts including aloose wheel on the combination a driver shaft, a driven shaft, a layshaft, a pair of gear wheels including driver shaft, a clutch face onthe-loose wheel, g x

a clutch, an operating member for the clutch to move it into and out 'ofengagement with the clutch face of the loosewheel, and controlling meansfor the clutch-operating and gear-shifting members assuring engagementof the said pair of wheelsas a preliminary to the engagement of saidclutch and loose wheel, whereby the said pair of Wheels en glzlige inthe absence of torque on the lay s aft. i I

combination a driver shaft, a driven shaftfa clutch adapted to: directlyconnect said shafts, a lay shaft,.a pair of gear wheels including onewheel on the lay shaft and the other on the driven shaft,.a shiftingmember. for obtaining relative movement, into and .out of engagementbetween the wheels of the pair, a constant mesh gear connecting .2.Change speedmechanism havlng, in-

the driver and lay shafts including a loose wheel on the driver shaft, aclutch face on the loose wheel, a complementary face on .said clutch, anoperating member for the clutch to move it from an in position of directdrive through an intermediate out position to an-in position where itengages the said loose wheel and vice versa, and. con

trolling means for theclutch-operating and gear-shifting membersassuring engagement of the said pair of wheels as a preliminary to the.engagement ofsaid clutchand loose wheel, whereby the'said pair of wheelsengage hing relative movement into and outiof engagement betweenthewheels of the pair, a constant mesh gear connecting the driver and lashafts mcluding a loose wheel on the driver shaft, a clutch face on theloose wheel, a clutch, an operating memberfor the clutch to move it intoandout of engagement of said pair of-wheels is preliminary to theengagement of the clutch and loose wheel.

with the clutch face of the loose wheel, controlling means for theclutch opera'ting and f position indicator, a handle movable withgear-shifting members including a reference to said indicator, an; axismember, transmitting caring transmitting motion from thehand e to thesaid axis member, two

cams fixed .on said axis member, a bar as-- sociated with each cam forreci rocation thereby, and a striker carried by eac bar, the,

striker of one bar being connected to the gear-shifting member and thestriker of the.

other bar being connected to the clutchoperating member, whereby theengagement 4; Change speed mechanism having in combination a. driver"shaft, a driven shaft, a.-

clutch adapted to. directl connect said shafts, a lay shaft, apair 0gear wheels 'in-' cluding one wheel on the layshaft andthe other on the.driven shaft, a shifting member for obtaining relative movement into andout of engagement betweenthe wheels of the pair, a constant mesh gearconnecting the driver and'la'y shafts includin a loose wheel on thedriver shaft, 'a clutc' face on the loose wheel, -a complementary faceon said clutch, :.n 0 rating member for the clutch to move it rom an inposition of direct drivethrough an. intermedlate out position I to an inlposition where. it engages the said, vloose whee an ,for theclutch-operating .and gear-shifting members includinga ear ositionindicator, ,a handle movable wit re erence to said ind vice versa,contro ling'means I dicator, an-axis-member, transmitting gearingtransmitting motion from the handle to the saidlaxis member, twocams'fixed on said axis member, a bar associated with each cam forreciprocation thereby, and a striker carried by each bar, the striker ofone bar. being connected 'to the I ear-shlftmg member and the striker oft e other bar being connected to the clutch-operat ng member,

,whereby the engagement-of said pair of wheels is preliminary to theengagement of the clutch andloosewheel.

- 5. Change s eed mechanism having in" combination a river shaft, adriven shaft, a

la wlieelon the lay shaft and the other on the driven shaft, a shiftingmember for obtaining relative movement into and .out of engagementbetween the wheels of the. pair, a constant mesh ear connecting thedriver and lay shafts inc uding a loose wheel on the driver shaft, aclutch face on the loose wheel, a clutch, an operating member for theclutch 'to move it into. and outofengagement with the clutch face of theloose wheel, control ling meansfor the clutch-operating andgear-shifting members assuring engagement of the said pair of wheels'as' a to the engagement of said clutc and loose wheel, whereby the saidpair ofv wheels engagein the absence of torque on the lay shaftreversing gear, an independentc'ontrol for moving the reversing gear,whereby a re.- verse drive is obtained through the driven shaft, anda'locking member operated bythe independent control to secure thecontrolling means for the clutch-operating and gear-shifting membersagainst operation shaft, a pair of gear wheels including one preliminary(when thereversing gear'i's in position for a I reverse drive.

,' 6. Change speed mechanism. having in combination a driver shaft, adriven shaft, a

clutch adapted to directl I connect said shafts, a lay shaft,,a pair 0gear wheels including one wheel on the lay shaft and the other on thedriven shaft, a shifting member for obtaining relative movement into andout ofengagement between the wheelsof the pair, a constant mesh gearconnecting the driver and lay shafts including a loose wheel ,on thedriver shaft, a clutch face on the loose wheel, a complementary-face onsaid clutch,

it from an in position of direct drive loo throu h an intermediate fout'sit ion to an I ,in position where it'engages the said loose wheel andvice versa, controlling means for the clutch-operating and gear-shiftingmembe'rs"assuring engagement of th8 S8ld pair of wheels as a re of'saidclutc and loose wheel,where y .the

said pair of wheels engage in thefabsence of.

torque on the lay shaft, reversin gear, an

independent control for movingt e reversing gear, whereby a reversedrive is obtained through the driven shaft, and a locking memberoperated by the independent controlto secure the controlling means forthe clutch operating and gear-shifting members against operation whenthe'reversmg gear is in position'for a reverse drive.

' 7; Change speed mechanism havin in combination a driver shaft,.a'driven s aft, a lay' shaft, a pair of. gear wheels-- includin onewheelon the lay shaft and the ot er; on the drivenishaft, a shiftingmemlminary to the enga ement her for obtaining relative movement into anoperating member for the clutch to move and out of engagement betweenthe wheels of the pair, a constant mesh gear connecting the driver andlay shafts including a loose wheel on the driver shaft, a clutch face onthe'loose wheel, a clutch, an operating member for, the clutch to moveit into and out of engagement with the clutchface of the loose wheel,controlling means' for the clutch-operating and gear-shifting membersincluding a gear position indicator, a handle movable with referencetosaid indicator,- an axis member, transmittinggearin transmitting motionfromthe handle to he said axismember, two cams fixed on said axismember, a bar associated with each cam" for reciprocation thereby, a

striker carriedby eachbar, the striker of one bar being connectedto thegear-shifting member and the striker ofthe other bar being connected tothe clutch-operating,

' when the reversing gear is in' position for position of direct drivethrougl mediate outH-eposition to an a reverse drive. n

8 Change speed mechanism having in combinationa'driver shaft, a drivenshaft, a clutch adapted to directly connect said shafts, a lay shaft, apair of gear wheels including one wheel on the lay' shaft and the otheron the driven shaft, a shifting memberfor obtaining relative movementinto and out of engagement-between the wheels of the pair, a constantmeshigear connecting the driver and lay shafts including a loose' wheelon-the driver shaft, a clutch face on the loose wheel, a complemen taryface on said clutch, an operating member for the clutch to-move itfroman in 1 an interin position where it engagesthesaid loose wheel and viceversa, controlling means for the clutch-operating and gear-shiftingmembers including a gear position ind cator, a handle movable-withreference to said indicator, an axis member, transmitting gearing--transmitting'motion from the handle. to the said'axis member, two camsfixed on said axis member, a bar associated with .'each cam forreciprocation. thereby, a

striker carried by each bar, the striker of one bar being connected tothe gear-shifting member and the striker of the other bar beingconnected to the clutch-operatin member, whereby the engagement of saipair of wheels ispreliminary to the engage-r ment of the clutch andloose wheel, revers- 'cliltc reversing gear, an 111 mesh ing thereversing-gear, whereby a reverse drive is obtained through the drivenshaft,

and a'locking member operated by the independent control to secure thecontrolling means for the clutch-operating and gear-.

shifting membersv against operation when the reversing gear is'inposition for a re-. verse drive. I 9. Change speed mechanism having incombination a driver shaft, a driven shaft, a lay shaft, two pairs ofgear wheels, each pair including one wheel on the lay shaft and theother on the "driven shaft, a shifting member for obtaining relative,movement into and out of engagement between the wheels of the'pairs,aconstant mesh gear'oonnecting thefdriver and lay shafts including aloosewheel on the driver shaft, a clutch face on the loose wheel,- a clutch,an operating member for the clutch to move it into and out of engagementwith the clntchfa'ce of the loose wheel, controlling means functioningas set forth while changing toa forward gear drive for the- -operatingand gear-shifting members, ependent control for moving the reversinggear, whereby a reverse drive is obtained through the driven shaft, anda locking member operated by the independent control to secure the conatrolling means for the clutch-operating and gear-shifting membersagainst operation when. the reversing gear is in position for reversedrive. 7 I

10. Change speed-mechanism having in combination a drivershaft, a drivenshaft, a clutch adapted to directly connect said shafts, alay shaft, twopairs of gear wheels, each pair including one wheel on thelay. shaft andone wheel on the drivenshaft, a

shifting member for obtaining relative movement into and out ofengagement between the wheels of'ethepairs, a constant ear connectingthe driver and :lay shafts includingva loose wheel on the driver shaft,a clutch face on the loose wheel, a Y

complementary face on said clutch, an operating member for the clutch tomove/it ,from' an in position of direct drive through an intermediateout position to an in position where it engages the said loose wheeland,VICB versa, controlling means functioningjas set forth'while changingto a forward gear drive, for the clutch operating and "gear-shiftingmembers, re-' versing gear, an independent control for a moving thereversing gear, whereby a reverse drive is obtainedthrough the drivenshaft, and. a locking'member operated by the independent control tosecure the controlling means for the clutch-operating andgeanshiftingfimembers against voperation gear is in position for whenthe reversing reverse drive.

11. Change speed mechanism having in combination a driver shaft, adriven shaft, a lay shaft-,two pairsof gear wheels, each' pair includingone wheel on the lay shaft and the other onthe driven shaft, a shiftingmember for obtaining relative movement into and out of engagementbetween the wheels of the pairs, a constant mesh gear connecting thedriver and lay. shafts ineluding a. loose wheel on the driver shaft, aclutch face on the loose wheel, a clutch, an operating member for theclutch to move'it into and out. of engagement with the clutch face ofthe loose wheel, con-trolling means functioning as set forth whilechanging to a forward gear drive forthe clutch-operating andgear-shifting members including a gear ppsitlon indicator, ,a'handlemovable with reference to said indicator, an axis member, transmittinggearing transmitting motion from the han le to 'thesaid axis member,

two cams fixedon said axis member, a bar associated-'w1th each'cam forreciprocation thereby, a striker carriedfby each bar, the striker of onebar being connected to the gear shifting member and the striker o f'theshaft, a clutch 'face'on the loose wheel, a

- each bar, the striker of one barbeing conother bar being connected tothe clutch-0 erating member, reversing gear, an in ependent control formoving the reversin gear, whereby a reverse drive is 'obtaine throughthe driveni shaft, and a locking member operated by the independent,control to secure the controlling means for the clutch-operating andgear-shifting members against operation when'the'reversing gear is inposition for reverse drivei Y 12. Change s ed mechanism 'havin l incombination a river shaft, adrivens aft,

a clutch'lada ted to directly connect said shafts, a lay s aft, twopairs of gear' wheels, each pair including one wheel. on the lay shaftand 'one wheel on the drivenshaft, a shifting-member for obtainingrelative movement into and out of engagement between the wheels of. thepairs, a constant mesh ar connecting the driverand lay shafts includinga loose wheel .on the driver complementary face on said clutch, an o I-eratlng member for thenclutch to' move it from an 'in position of directdrive through an .intermediate "o1'1 t?"-position to an in positionwhere it engages the said loose wheel and vice versa, controlling meansfunctioning as set forth while changing to a forward gear drive for theclutch-operating and gea'pshifting members including a gear position.indicator, a. handle .mov-,

able withreference to'said indicator, an axis member, transmitting{gearing transmitting motion from the han le to the .said axis member,two cams fixed on said axis member, a .bar associated with each 'cam forreciprocation thereby, a striker carriedby nected to the gear-shiftingmember and the striker of the other bar being connected to theclutch-operating. member, reversing gear, an. independent control formoving the reversing gear, "whereb a reverse drive isobtained throughtheriven shaft, anda locking member operated by the independent oontrolto secure the controlling.

mentinto and out of engagement between. I a

the wheels of the pairs, a constant mesh gear-connecting the driver andlayshafts including a loose wheel on the driver shaft,

-;an operatin -member for the clutch to move it a intoan out ofengagement with the clutch face of the loose wheel, controlling meansfunctioning as set forth while chan ing to a forward gear drive for theclutc 0 rating and a gear-shifting members inc uding a ar positionindicator a handle movab e W1 h reference to said indicator, an axismember, transmitting aring transmittingmotion from the hanfiie to thesaid axis member,' a disc fixed on said axis-memher, a cam on each faceof the .disc, a bar associated with each cam for. reciprocation thereby,a striker carried 'by each bar, the

striker of one bar being. connected to the f gear-shifting member andthestriker of the other bar being connected to the clutch-b erating member,reversing gear, an in ependent control lever for movingthe reversinggear for reverse drive, and 'a' pro'-. :jection on said lever,,the saiddisc having a recess disposed so that the projection enters the recess.and locks, said isc when a clutch face on the loose wheel, a clutch,

nod

- the inde ndent-lever iso rated for reverse.

combination a river shaft, a driven a clutch ada ted to directlycon'nect' sai shafts, a la each pair ncluding one wheel on the'lay 14. Cange s" d mec anism havi in s l af y aft, two pairs of gear wheels,

shaft and one wheel on the driven shaft, I a shifting member forobtaining relative movement into and-out of engagement between thewheels of the pairs, a constant mesh gear. connecting the driver and layshafts including a loose wheel'on the driver.

, sha a clutch face on the loose wheel, a comp e entary face on saidclutch, an operatingmember for the clutch to move it from :aninjposition of direct drive through ;an intermediate out position to anin vposition-where it engagesthe ,said loose wheel and vice versa,controlling means functioning as set forth while changing to a forwardgear drive for the clutch-operating and gear-shifting members includinga gear position indicator, a handle movable ,with reference to saidindicator, an axismember, transmitting gearing transmitting -motion fromthe handle to the said axis member, a disc fixed on said axis memberyacam on each face of the disc, a bar associated with; each cam forreclprocation thereby, a

' strikercarried' by each bar, the striker of one bar being connected tothe gear-shifting member and the striker of the other bar bein connectedto the clutch-operating mem er, reversing gear, an independent controllever for moving the reversing gear for reverse drive, and a projectionon-said lever,

pair including one wheel on the lay shaft and one wheel on the drivenshaft, a shift-' ing member for obtaining relative movement 1nto and outof engagement between the wheels of the pairs, a constant mesh gearconnecting the driver and lay shaftsincluding a loose wheel on thedriver shaft, a clutch face on the loose wheel, a clutch, an operatingmember for the clutch to move it into and out of engagement with theclutch face of the loose wheel, controlling means func tioning as setforth while changing to a forward ear dri'vefor the clutch-operating andgear-s ifting members including a gearposition indicator, a handlemovable with reference to said indicator, a spindle for the handle, afixed column in which the spindle is mounted, an axis member,transmitting gearing transmitting motion from the handle spindle to thesaid axis member, two cams fixed on said axis member, a bar associatedwlth each cam for reciprocation thereby, a str ker carried by .e'achbar, the striker of one bar being connected to the gear-shifting memberand thestriker of the other bar bein connected to the clutch-operatingmem er, tri gearv mounted on saidLhandle operating with a notched headof said column, adapted to assure a step by step movement of the handlethrough the different relat1ve positions of the gear pairs and 001'- 1responding positions of the clutch, reversing gear, an independentcontrol for moving the reversing gear, wherebya reverse drive 'isobtained thoughhthe driven shaft, and a locking member operated by theindependent control to secure the controlling means for theclutch-operating and gear-shifting members against operation when thereversing gear is in position for'reverse drive.

16. Change speed mechanlsm having in oombinatiori a driver shaft, adriven shaft, a clutch adapted to directly connect sald shafts, a layshaft, two pairs of gear wheels,

each pair including one wheel on the lay shaft and the other on thedriven shaft, a shifting member for obtaining relative movement into andout of engagement between the wheeds of the-pairs, a constant mesh earconnecting the driver and lay shafts including a loose wheel on thedriver shaft, a clutch face on th'e loose wheel, a complementary face onsaid clutch, an oper ating member. for the clutch to move it from an inposition of direct drivethrough an intermediate .outlposition to an inposition where it engages the: said loose wheel and vice versa,controlling means functioning as set forth whilechanging to a forwardgear drive for the clutch-operating and gear-shifting members" includinga gear position indicator, a handle movable with reference to saidindicator, a spindle for the handle, a fixed column in which the spindleis mounted, an axis member, transmitting earingtransmitting motion fromthe hanle-spindle to the said axis member, two

roams fixed on said axis member, a bar associated with each cam forreciprocation thereby, a striker carried by eaeh'bar, the striker ofonebar being connectedto the gear-shiftingmemberfand the striker of thereversing'gear, an independent control for moving the reversing gear,whereb a reverse drive is obtained through the'driven shaft, and ,alocking member operated by the independent control to secure thecontrolling .meansfor the clutch-operating and gearshifting membersagainst 0 ration when the reversing gear is in positlon for reversedrive.

7 17. Change speed mechanism having in combination a"driver,jshaft, adriven shaft,

a lay shaft, two pairs of gear wheels, each pair including one wheel onthe lay shaft and one wheel on the driven shaft, a shifting member forobtaining. relative movement into and out of engagement between thewheels of the pairs, a constantinesh gear connecting the driver and-layshafts including a loose wheel on the driver shaft, a clutch. face onthe loose wheel, a clutch, an

operating memberfor the clutch to move it into and out of engagementwiththe clutch face of the loose wheel, controlling means functioning asset forth while changing to a forward gear drive for theclutch-operating and gear-shiftingmembers including a gear positionindicator, a handle movable with reference to said indicator, a spindlefor the handle, a fixed column in which the spindle is mounted, an axismember, transmitting connected to the the striker of the other bar beingconnected i i of the so that the locks said disc when the independentlever .is operated for reverse.

shafts, a lay shaft,

to the clutch-operating memben trip I gear mounted on said handleoperating with a notched head of said column, adapted to assure' a stepby stepmovement of the handle through the diflerent relative positionsofthe gear pairs and corresponding positions I clutch, reversinggear, anindependent control lever for moving the reversing gear for reversedrive, and a projection on said lever, the said disc having a recessdisposed projection enters the recess and 18. Change speed mechanismhaving in combination a driver shaft, a driven shaft, a clutch adaptedto directly connect said two pairs of gear wheels, each pair includingone wheel on the lay shaft'an'd one Wheelon the drivenshaft, a shiftingmember for obtaining relative movement-into and out ofengagementbetween-the wheels of the pairs, a constantmesh gearconnecting. the driver and lay shafts including a loose wheel on thedriver shaft, a clutch-face on theloose wheel, a

complementary face on said clutch, an operating-member for the clutch tomove it from an iii position of direct drive through an intermediatefout position to an in position where it engages the said loose wheel,controlling means functioning as set I to said indicator,

forth while changing to a forward gear earshifting members includingv agear pos ition indicator, a handle movable with'refer'ence a spindle forthey handle, a fixed column in which the spindle is mounted, an axismember, transmitting gearing transmitting motion from the. handlespindle to the said axisjmember, a ;disc' fixed onsaid axis member, acam on each,

face of the disc, a .bar associated with each cam for reciprocationthereby, astriker carried by each bar, the striker of one bar beingconnected to the gear-shifting member and the striker of the other barbeing connected to the clutch-operating member, trip gear mounted onsaid handle operatin with a notched head of said column, adapte toassure a step by step movement of the handle through the difierentrelative posi- ,tions of the glear pairs and corresponding positions oftindependent control lever for moving the 4' e clutch, reversing gear, an

reversing gear for reverse drive, and a pro- ;jection on said lever, thesaid disc having a recess disposed so that the projection enters therecess and locks said disc when the independent lever-is operated forreverse.

19. Change speed mechanism having in' combination a drivervshaft, adriven shaft, a clutch adapted to directly connect said shafts, a layshaft, two pairs of gear wheels,

tion where it engages the-said loose wheel and vice versa, controllingmeans functioning as set forth while changing to a forward gear drivefor the clutch-operating and gear-shifting members. including a gear 7position indicator, a handle movable with} reference tosaid indioator, aspindle for the handle, a-fixed column in which the spindle ,is mounted,an axis member, transmitting handle spindle to the said axis member, twocams fixed on said axis member, a bar associated with each cam forreciprocation thereby, a striker carried by each bar, the striker of onebar .being connected to the gear-shifting member and the striker of theother bar being connected to the clutch-operating member, trip gearincluding a catch pivoted on the handle, a notched head for said column,each notch being eha'mfere'd oif as set forth, a spring tending to pushthe catch into the notches, a cam'face on the catch on the other side ofits pivot to the notches, a lever pivoted on the handle, a springpressed nose member pivoted on the lever',so that the nose thereofengages the can; face of the catch when the latter engages one of thesaid notches, means for operatlng said lever to cause the nose member topass over said cam face to rock the catch to the chamfering of thenotch, said chamfering-being such that when the handleis rotatedthe.catch is further rocked out of the notch by the chamfering engage.-

gearing I transmitting -motion from the pressed by its spring clear ofthe said cam face to leave the catch free to'be moved back by its springinto the'successive notch as the movement of the control handle .iscontinued, automatic means" for immediately returnin said nose member toengage said cam sur ace after it hascleared the latter,

reversing gear, an independent control for moving the reversing gear,whereby a reshifting member for obtaining relative movement into and outof engagement between the wheels of the pairs, a constant -mesh gearconnecting the driver and lay shafts including a loose wheel on thedriver shaft, a clutch face on the'loose wheel, a complementary face onsaid clutch, an operating member for the clutch to moveit from an inposition of direct drive through an intermediate out position to an inposition. where it engages .the said loose wheel, controlling meansfunctioning. as set forth while changing to a forward gear drive for theclutch-operating and gearshifting members including a gear positionindicator, a handle movable with reference to said indicator, a spindlefor the handle, a fixed column in which the spindle is mounted, an axismember, transmitting gearing transmitting motion from the handle spindleto the said axis member, a disc fixed on said axis member, a cam on eachface of the disc, a bar associated with each cam for reciprocationthereby, a striker carried by each bar, the striker of one bar beingconnected to the gear-shifting member and the striker of the other barbeing connected to the clutch-operating member, trip gear includmg acatch pivoted on the handle, a notched head for said column, eachnotchbeing chamfered 011' as set forth, a spring tending to push the catchinto the notches, a cam face on) the catch on the other side of itspivot to the notches, a lever pivoted on the andle, a spring pressednose member pivoted on the lever, so that the nose thereof engages thecam face of the catch when the latter engages one of the said notches,means for operating said lever to cause the nose member to pass oversaid cam face to rock the catch) to the chamfering of the notch,

I said chamfering being such that when the handle is rotated, the catchis further rocked out of the notch by the chamfering engagmg the catch,whereon the nose member is pressed by its spring clear of thesaid camface to leave the catch free to be moved back by its spring into thesuccessive notch continued, automatic means for immediately returningsaid nose member to engage said cam surface after it has cleared thelatter, reverslng gear, an independent control lever for the reversinggear for reverse drive, and a projection onsaidqlever, the saiddischaviug a recess disposed so that the pro.- jection enters the recessand locks said disc when the independent lever is operated for reverse.

21. Change speed mechanism having intween the wheels of the pairs, aconstant 7 mesh gear connecting the driver and lay shafts including aloose wheel on the driver shaft, a clutch face on the loose wheel, a

complementary face on said clutch, an operating member for the clutch tomove it from an an intermediate out position to an in position where itengages the said loose wheel, controlling means functioning as set forthwhile changing to a: forward gear drive for the clutch-operating'andgearshifting members including a gear position indicator, a handlemovable with reference to said indicator, a spindle for the handle, afixed column in whichthe spindle is mounted, an axis member,transmitting "gearing transmitting motion from the handle spindle to thesaid axis member, a disc fixed in position of direct drive through onsaid axis member, a cam' on each face'of the disc, a bar associated witheach cam for reciprocation thereby, a striker carried by each bar, thestriker of one bar being connected to the gear-shifting member and thestriker of the other bar beingconnected to the clutch operating member,trip gearincluding a catch pivoted on the handle, a notched head forsaid column,'each notch being chamfered off as set forth, a springtending to push the catch into the notches, acam face on the catch onthe other side of its pivot to the notches, a lever pivoted on thehandle, a spring pressed nose'member pivoted on the lever, so that thenose thereof engages the cam face of the catch when the latter engagesone of the said notches, means for operating said lever to cause thenose:

member ,to pass over said cam face to rock the catch of the chamferingofthe notch,

said chamfering being such that when the handle is rotated the catch isfurther rocked out of the notchby the chamfering en aging the catch,whereon the nose mem r is pressed by its spring clear of the. said camface to leave the catch free to be mov back by its spring into thesuccessive notch as the movement of the control handle iscontinued,automatic means for immediately" returning said nose member to engagesaidcam surface after 'it has cleared the latter, tyvo sidably mountedidler wheels fixed for rotation together, an independent control -lever,the said disc having a recess disposed lever for moving said idlerwheels so that so that the rejection enters the recess and one idlerengages a wheel on the driven locks said dlsc when the independent lever10 shaft and the other a wheel on the lay'shaft is operated for reverse.

vIi when the said pairs'are out of engagement, In testimony whereof Iaifix my signature.

whereby a reverse drive is obtained through v e the driven shaft, and aprojection on said JAMES FARLEY.

